[1502] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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[3084] | 23 | * Oliver Scheuss |
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[1502] | 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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| 29 | #include "ClientConnection.h" |
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| 30 | |
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[3214] | 31 | #include <cassert> |
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[5749] | 32 | #define WIN32_LEAN_AND_MEAN |
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[2773] | 33 | #include <enet/enet.h> |
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[8858] | 34 | #include "util/Output.h" |
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[1502] | 35 | |
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[2171] | 36 | namespace orxonox |
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[1502] | 37 | { |
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[3214] | 38 | const unsigned int NETWORK_CLIENT_WAIT_TIME = 1; |
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| 39 | const unsigned int NETWORK_CLIENT_CONNECTION_TIMEOUT = 3000; //millisecs |
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[5965] | 40 | const unsigned int NETWORK_CLIENT_MAX_CONNECTIONS = 1; |
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[1502] | 41 | |
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| 42 | |
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[3214] | 43 | ClientConnection::ClientConnection(): |
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[8327] | 44 | Connection(NETWORK_PEER_ID_SERVER), |
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[3214] | 45 | established_(false), |
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[11071] | 46 | server_(nullptr) |
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[3214] | 47 | { |
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| 48 | this->serverAddress_ = new ENetAddress(); |
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| 49 | //set standard address and port |
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[7459] | 50 | enet_address_set_host(this->serverAddress_, "127.0.0.1"); // TODO: check for IPv6 and connect to ::1 instead |
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[3214] | 51 | serverAddress_->port = NETWORK_PORT; |
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[1502] | 52 | } |
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| 53 | |
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[1907] | 54 | ClientConnection::~ClientConnection(){ |
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[3214] | 55 | if(this->established_) |
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[1907] | 56 | closeConnection(); |
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[3214] | 57 | delete this->serverAddress_; // surely was created |
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[1502] | 58 | } |
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| 59 | |
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[3214] | 60 | void ClientConnection::setServerAddress( const std::string& serverAddress ) { |
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[7459] | 61 | if (enet_address_set_host (this->serverAddress_, serverAddress.c_str()) < 0) |
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[8858] | 62 | orxout(internal_error, context::network) << "Could not resolve \"" << serverAddress << "\"." << endl; |
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[1502] | 63 | } |
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| 64 | |
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[3214] | 65 | void ClientConnection::setPort( unsigned int port ) { |
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| 66 | this->serverAddress_->port = port; |
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[1502] | 67 | } |
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| 68 | |
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[3214] | 69 | bool ClientConnection::establishConnection() |
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| 70 | { |
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| 71 | ENetEvent event; |
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[6417] | 72 | |
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[7801] | 73 | // create host |
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[11071] | 74 | this->host_ = enet_host_create(nullptr, NETWORK_CLIENT_MAX_CONNECTIONS, NETWORK_CHANNEL_COUNT, 0, 0); |
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[7801] | 75 | |
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[11071] | 76 | if ( this->host_ == nullptr ) |
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[3214] | 77 | { |
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[11071] | 78 | orxout(internal_error, context::network) << "ClientConnection: host_ == nullptr" << endl; |
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[3214] | 79 | // error handling |
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[1502] | 80 | return false; |
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[3214] | 81 | } |
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[7801] | 82 | |
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| 83 | // enable compression |
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| 84 | this->enableCompression(); |
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| 85 | |
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[7459] | 86 | assert( this->host_->socket4 != ENET_SOCKET_NULL || this->host_->socket6 != ENET_SOCKET_NULL ); |
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| 87 | if (this->host_->socket4 == ENET_SOCKET_NULL) |
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[8858] | 88 | orxout(internal_warning, context::network) << "IPv4 Socket failed." << endl; |
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[7459] | 89 | else if (this->host_->socket6 == ENET_SOCKET_NULL) |
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[8858] | 90 | orxout(internal_warning, context::network) << "IPv6 Socket failed." << endl; |
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[7459] | 91 | else |
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[8858] | 92 | orxout(internal_info, context::network) << "Using IPv4 and IPv6 Sockets." << endl; |
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[7459] | 93 | |
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[7801] | 94 | this->server_ = enet_host_connect(this->host_, serverAddress_, NETWORK_CHANNEL_COUNT, 0); |
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[11071] | 95 | if ( this->server_==nullptr ) |
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[3214] | 96 | { |
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[11071] | 97 | orxout(internal_error, context::network) << "ClientConnection: server_ == nullptr" << endl; |
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[3214] | 98 | // error handling |
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[1502] | 99 | return false; |
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| 100 | } |
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[3214] | 101 | // handshake |
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| 102 | for( unsigned int i=0; i<NETWORK_CLIENT_CONNECTION_TIMEOUT/NETWORK_CLIENT_WAIT_TIME; i++ ) |
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[1502] | 103 | { |
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[3214] | 104 | if( enet_host_service(this->host_, &event, NETWORK_CLIENT_WAIT_TIME)>=0 && event.type == ENET_EVENT_TYPE_CONNECT ) |
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[1502] | 105 | { |
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[8327] | 106 | // manually add server to list of peers |
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[11990] | 107 | Connection::preprocessConnectEvent(event); |
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| 108 | |
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[8327] | 109 | // start communication thread |
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[3214] | 110 | this->established_=true; |
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[7801] | 111 | Connection::startCommunicationThread(); |
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[3214] | 112 | return true; |
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[1502] | 113 | } |
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| 114 | } |
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[8858] | 115 | orxout(user_error, context::network) << "Could not connect to server" << endl; |
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[3214] | 116 | return false; |
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[1502] | 117 | } |
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| 118 | |
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[3214] | 119 | bool ClientConnection::closeConnection() { |
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[1502] | 120 | ENetEvent event; |
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[6417] | 121 | |
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[3214] | 122 | if ( !this->established_ ) |
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[3084] | 123 | return true; |
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[3214] | 124 | this->established_ = false; |
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[8327] | 125 | |
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| 126 | // stop communication thread and disconnect server |
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[7801] | 127 | Connection::stopCommunicationThread(); |
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[3214] | 128 | enet_peer_disconnect(this->server_, 0); |
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| 129 | for( unsigned int i=0; i<NETWORK_CLIENT_CONNECTION_TIMEOUT/NETWORK_CLIENT_WAIT_TIME; i++) |
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| 130 | { |
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| 131 | if ( enet_host_service(this->host_, &event, NETWORK_CLIENT_WAIT_TIME) >= 0 ) |
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[1502] | 132 | { |
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[3214] | 133 | switch (event.type) |
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| 134 | { |
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| 135 | case ENET_EVENT_TYPE_NONE: |
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| 136 | case ENET_EVENT_TYPE_CONNECT: |
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| 137 | break; |
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| 138 | case ENET_EVENT_TYPE_RECEIVE: |
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| 139 | enet_packet_destroy(event.packet); |
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| 140 | break; |
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| 141 | case ENET_EVENT_TYPE_DISCONNECT: |
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[8858] | 142 | orxout(verbose, context::network) << "received disconnect confirmation from server" << endl; |
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[5929] | 143 | this->connectionClosed(); |
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[3214] | 144 | return true; |
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| 145 | } |
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[1502] | 146 | } |
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| 147 | } |
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[3214] | 148 | enet_peer_reset( this->server_ ); |
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[5929] | 149 | this->connectionClosed(); |
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[1502] | 150 | return false; |
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| 151 | } |
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| 152 | |
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[3214] | 153 | |
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[7801] | 154 | void ClientConnection::addPacket(ENetPacket *packet, uint8_t channelID) { |
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[3214] | 155 | assert( this->server_ ); |
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| 156 | assert( packet ); |
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[8327] | 157 | // HACK: actually there should be a way to do this using addPacket and the correct peerID |
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| 158 | return Connection::broadcastPacket(packet, channelID); |
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[1502] | 159 | } |
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| 160 | |
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[8327] | 161 | void ClientConnection::addPeer(uint32_t peerID) |
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[3214] | 162 | { |
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| 163 | assert(0); |
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[1502] | 164 | } |
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[8327] | 165 | void ClientConnection::removePeer(uint32_t peerID) |
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[3214] | 166 | { |
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| 167 | this->established_=false; |
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[8858] | 168 | orxout(internal_error, context::network) << "Received disconnect Packet from Server!" << endl; |
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[11990] | 169 | // server closed the connection |
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[7801] | 170 | this->stopCommunicationThread(); |
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[5929] | 171 | this->connectionClosed(); |
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[3214] | 172 | } |
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[6417] | 173 | |
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[5961] | 174 | uint32_t ClientConnection::getRTT() |
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[6417] | 175 | { |
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[7284] | 176 | if (server_) |
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| 177 | return server_->roundTripTime; |
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| 178 | else |
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| 179 | return 0; |
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[5961] | 180 | } |
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[1502] | 181 | |
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| 182 | } |
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